L2TP connecting but not assigning IP

bavariabavaria Member, SecuReporterBeta Posts: 10
edited March 27, 2020 12:36PM in Troubleshooting

Hi,

I have an USG 110 with the newest firmware and I setup a L2TP VPN.

I have following problem, two laptops (both Microsoft Surface) are working perfectly with the VPN.

But with all other Windows 10 (1909), I have a problem. Within the Zyxel VPN monitor I can see that this PC's can connect. But they don't get an IP address.

And after a short time the PC's disconnect and get different errors, mostly 718 or 829.

I also tried the NAT regedit hint, but it doesn't work.


Do you have an idea?

Accepted Solution

  • bavariabavaria Member, SecuReporterBeta Posts: 10
    Accepted Answer
    Hello Zyxel_Jerry,


    sorry for the late answer, 
    I configured the vpn as you mentioned, but I had the problem that it cannot connect on some W10 machines.
    I setup now IKEv2 with a certificate and it works on all machines from beginning.
    Thanks.

All Replies

  • Zyxel_JerryZyxel_Jerry Zyxel Official Agent Posts: 275  mod

    Hi @bavaria

    Can you share the VPN settings (VPN connection and VPN gateway) on USG110 ?

    What is the L2TP settings on Win10?

    Do you have any AD authentication?

  • bavariabavaria Member, SecuReporterBeta Posts: 10
    Hello Zyxel_Jerry,


    sorry for the late answer, 
    I configured the vpn as you mentioned, but I had the problem that it can't connect on some W10 machines.
    I setup now IKEv2 with a certificate and it works from beginning.
    Thanks.
  • bavariabavaria Member, SecuReporterBeta Posts: 10
    Hello Zyxel_Jerry,


    sorry for the late answer, 
    I configured the vpn as you mentioned, but I had the problem that it can't connect on some W10 machines.
    I setup now IKEv2 with a certificate and it works from beginning.
    Thanks.
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